According to some embodiments, system and methods are provided including receiving, via a communication interface of an event detection and classification module comprising a processor, data from one or more sensors in a system; determining an event occurred based on the received data; applying a coherency similarity process to the received data via a classification module; determining whether the event is an actual event or a mal-doer event based on an output of the classification module; transmitting the determination of the event as the actual or the mal-doer event; and modifying operation of the system based on the transmitted output. Numerous other aspects are provided.
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2. The method of claim 1, wherein the data is synchrophasor data collected from phasor measurement units or Phasor Data Concentrators.
3. The method of claim 2, wherein the synchrophasor data includes at least one of voltage angle current angle, voltage magnitude, current magnitude, and active power.
4. The method of claim 1, wherein the reference value is at least one of a synthetic right singular vector (RSV) and a historical RSV.
5. The method of claim 1 wherein the event singular value decomposition is based on a moving window data of an electrical signal.
6. The method of claim 5, wherein a window size of the moving window of data is determined based on model analysis using at least one of a network admittance matrix, generator location and inertia, load location and magnitudes.
7. The method of claim 1, wherein the coherency process outputs a right singular vector as a coherency value.
8. The method of claim 1, wherein comparing the post-event right singular vector to the reference value is a measure of one of: rotation angle, Manhattan distance, Euclidean distance, or Chebyshev distance.
9. The method of claim 1, wherein classification threshold value is updated based on at least one of: an output of the event classification module, a user input, learning from historical data.
11. The system of claim 10, wherein the data is synchrophasor data collected from phasor measurement units or Phasor Data Concentrators.
12. The system of claim 11, wherein the synchrophasor data includes at least one of voltage angle current angle, voltage magnitude, current magnitude, and active power.
13. The system of claim 10, wherein the reference value is at least one of a synthetic right singular vector (RSV) and a historical RSV.
14. The system of claim 10, wherein the event singular value decomposition is based on a moving window data of an electrical signal.
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May 10, 2019
May 23, 2023
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